Dear Deepayan,
I suggest something like
pointsGrob(
x=if(key$divide>1){(1:key$divide-1)/(key$divide-1)} else 0.5,
[blah-blah-blah]
)
This looks like your 3rd variant.
However, I haven't try very hard to verify my solution.
I tried to redefine the entire function draw.key in my working environment,
but this didn't work.
I use R 2.1.0 on windows 2000, packages are precompiled binaries.
Am I right in thinking, that despite the presence of my function
draw.key, xyplot used the function, defined in the package?
DS> There's certainly a problem (at least one of omission in the documentation),
DS> but I'm not sure what the best way to resolve it would be. This is what
DS> currently happens on S-PLUS (6.0) and R:
DS> divide = 3: o--o--o S-PLUS/R
DS> divide = 2: o-----o S-PLUS/R
DS> divide = 1: o S-PLUS
DS> ------- R
I would like to see ---o---
DS> Possible `solutions' are:
DS> 1. keep things as they are and clarify the documentation (namely, saying
that
DS> 'divide' has to be greater than 1 to make sense)
DS> 2. change it to behave like S-PLUS (but that seems silly, since one might
then
DS> just as well use 'points' instead of 'lines')
DS> 3. do something else entirely, like ---o--- . This is not attractive from a
DS> programmers point of view because it makes 'divide = 1' behave
DS> inconsistently with other values of 'divide'.
Marginal conditions need to be treated individually... :)
--
Best regards
Wladimir Eremeev mailto:[EMAIL PROTECTED]
==========================================================================
Research Scientist, PhD Leninsky Prospect 33,
Space Monitoring & Ecoinformation Systems Sector, Moscow, Russia, 119071,
Institute of Ecology, Phone: (095) 135-9972;
Russian Academy of Sciences Fax: (095) 135-9972
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